One of our biggest luxuries is time - and Amazon has vowed to save us plenty by upping its online shopping delivery game. Introducing Prime Now.

The American e-commerce giant has enhanced its Prime membership service by offering one-hour delivers on thousands of ‘daily essentials’ through its mobile app.

The service has only been rolled out in Manhattan, New York, thus far, but the firm has said it will begin offering one-hour deliveries in other major cities throughout 2015.

All Prime members can now download the Prime Now app and will be notified when the service is available in their area.

Prime Now is running 6am to midnight, seven days a week, in Manhattan for $7.99 a pop. Two-hour deliveries are, however, free for Prime members, who pay an annual fee. A portion of Amazon’s new building on 34th Street in Manhattan will serve as a delivery hub.

As thrillng as the news is for online shoppers, eBay actually announced eBay Now last year, which offers same-day deliverries in many American cities, through partnerships with high-street retailers like Best Buy, Target and Macy's.

Amazon's announcement comes around a year after it announced it was looking into a new drone delivery service, Amazon Prime Air. If you still haven’t seen the video, it’s worth a look.

What’s more, the relentlessly innovative firm has also recently announced Amazon Echo, a voice-controlled Siri-esque system for hands free convenience around the home. Also very much worth checking out.